diff --git a/Save_Score.php b/Save_Score.php
index 581670b..d880aeb 100644
--- a/Save_Score.php
+++ b/Save_Score.php
@@ -10,23 +10,74 @@ if (!isset($_SESSION['username'])) {
 }
 
 $username = $_SESSION['username'];
-$score = $_POST['score'] ?? 0;
+$score = intval($_POST['score'] ?? 0);
 
+// Validasi score
 if ($score <= 0) {
     echo json_encode(["status" => "error", "message" => "Skor tidak valid"]);
     exit;
 }
 
-// Simpan ke database
-$stmt = $conn->prepare("INSERT INTO leaderboard (username, score) VALUES (?, ?)");
-$stmt->bind_param("si", $username, $score);
-
-if ($stmt->execute()) {
-    echo json_encode(["status" => "success", "message" => "Skor berhasil disimpan"]);
-} else {
-    echo json_encode(["status" => "error", "message" => "Gagal menyimpan skor"]);
+// Validasi score maksimal (opsional, sesuaikan dengan game Anda)
+if ($score > 999999) {
+    echo json_encode(["status" => "error", "message" => "Skor terlalu tinggi"]);
+    exit;
 }
 
-$stmt->close();
+// Cek apakah user sudah punya record
+$checkStmt = $conn->prepare("SELECT score FROM leaderboard WHERE username = ?");
+$checkStmt->bind_param("s", $username);
+$checkStmt->execute();
+$result = $checkStmt->get_result();
+
+if ($result->num_rows > 0) {
+    // User sudah ada, cek apakah score baru lebih tinggi
+    $row = $result->fetch_assoc();
+    $oldScore = $row['score'];
+    
+    if ($score > $oldScore) {
+        // Update dengan score yang lebih tinggi
+        $updateStmt = $conn->prepare("UPDATE leaderboard SET score = ? WHERE username = ?");
+        $updateStmt->bind_param("is", $score, $username);
+        
+        if ($updateStmt->execute()) {
+            echo json_encode([
+                "status" => "success", 
+                "message" => "Skor berhasil diperbarui!",
+                "newHighScore" => true,
+                "score" => $score
+            ]);
+        } else {
+            echo json_encode(["status" => "error", "message" => "Gagal memperbarui skor"]);
+        }
+        $updateStmt->close();
+    } else {
+        // Score baru lebih rendah, tidak perlu update
+        echo json_encode([
+            "status" => "success", 
+            "message" => "Skor tidak diperbarui (skor lama lebih tinggi)",
+            "newHighScore" => false,
+            "currentHighScore" => $oldScore
+        ]);
+    }
+} else {
+    // User belum ada, insert baru
+    $insertStmt = $conn->prepare("INSERT INTO leaderboard (username, score) VALUES (?, ?)");
+    $insertStmt->bind_param("si", $username, $score);
+    
+    if ($insertStmt->execute()) {
+        echo json_encode([
+            "status" => "success", 
+            "message" => "Skor berhasil disimpan!",
+            "newHighScore" => true,
+            "score" => $score
+        ]);
+    } else {
+        echo json_encode(["status" => "error", "message" => "Gagal menyimpan skor"]);
+    }
+    $insertStmt->close();
+}
+
+$checkStmt->close();
 $conn->close();
 ?>
\ No newline at end of file